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Customer Reviews

The actual packet of crystals were/are a lot finer than those in the above picture on the website - which is a very good thing as it saved me crushing them down!
I was doing an experiment with my Scouts to show how an exothermic reaction works but unfortunately the weather was a bit too cool so that;s my fault. I still have enough to do one in warmer weather.
Thanks, a great product!(Posted on 18/05/2015)